Longitudinal change in left ventricular function (ejection fraction) Reduction of left ventricular end systolic volume, Change in regional wall motion in infarct area and Change in infarct mass as measured by cardiac MRI [ Time Frame: 3 months ] [ Designated as safety issue: No ]

The purpose of this study is to determine whether Intracoronary infusion of autologous bone marrow derived progenitor cells to patients undergoing primary angioplasty for acute anterior myocardial infarction will lead to an improvement in cardiac function greater than that seen by placebo alone.

Aims

To demonstrate that it is safe and feasible to deliver autologous bone marrow derived stem cells within hours of the primary angioplasty procedure